code: def get_trading_days(start, end, trading_day=trading_day):
      return pd.date_range(
          start=start.date(), end=end.date(), freq=trading_day
      ).tz_localize("UTC")
  
file_path: zipline/zipline/utils/tradingcalendar.py
imports: import pandas
  import pytz
  from datetime import datetime
  from dateutil import rrule
  from functools import partial
label_desc: Use image node_id 3 for calling a global function with example usage: get_trading_days(start, end, trading_day) and returns: pd